Sell your colored diamonds with Diamantaires Paris today

The color or hue of a diamond is one of the criteria used to determine the value of a diamond. In nature, diamonds come in all colors: regardless of a diamond's natural color, gemologists will examine the degree to which the diamond is colorless to determine its value. This requires expertise and a good knowledge of the standards in the field! In this guide, we explain the measurement scale used to determine a diamond's color, as well as the impact the diamond's hue will have on its price.

Diamond color, one of the 4Cs

The 4Cs are the four basic criteria used by gemological laboratories to measure a diamond's value: Carat (weight), Cut (cut and shape), Clarity (purity), and Color (color or hue).

A diamond's color is therefore one of its most important characteristics, and it will have an impact on the diamond's beauty, but also on its value (and thus its final price). In this way, the rarest diamonds, and therefore those with the highest value, are those that are colorless.

How to determine a diamond's color?

Unlike carat weight, which is easier to measure, measuring a diamond's color can only be done by a certified diamond grading professional. The color can indeed be visually affected by many factors (light, observer's vision, setting, etc.). It is therefore important that the measurement be carried out under proper conditions.

Note that the larger the diamond, the easier the color is to determine.

To reliably measure a diamond's color, several conditions must be met:

• The observer's eye must be rested
• The light must be a continuous emission spectrum rich in blue radiation, with a color temperature of 7,000 ° Kelvin, emitted by a cold light lamp. To give you an idea, this means it must be similar to the light diffused in the north (mid-latitude) at midday when the sky is clear. Daylight (especially if UV-rich) will not be suitable because it will bring out the diamond's fluorescence.
• The diamond must be clean and free of any traces. If it is dirty, its hue will appear darker.
• The diamond must not be set so that the mounting does not affect the perceived color.

Which measurement scale is used to determine a diamond's color?

The color scale used to determine a diamond's color is that of the Gemological Institute of America (GIA), also used by the International Gemological Institute (IGI). The scale ranges from the letter D (like "Diamond") to the letter Z.

The letter D corresponds to the "Exceptional White +" hue and designates a completely colorless diamond: it is the rarest diamond, and therefore the most sought after. Colorless diamonds are considered to be the best quality diamonds, but they are also very rare: they are therefore the most sought after and the most valuable.

Next, the further down the diamond color classification scale you go, the more marked the diamond's hue becomes, tending towards yellow or brown:

• Color E corresponds to the "Exceptional White" hue;
• Color F corresponds to the "Extra White +" hue;
• Color G corresponds to the "Extra White +" hue;
• Color H corresponds to the "White" hue: a tinge is visible from the side but difficult to see when facing the table of the diamond. H color diamonds have an excellent price-quality ratio because they are tinted, but the tint is very difficult to see with the naked eye;
• Colors I and J correspond to the "Slightly Tinted White" hue: a tinge is visible from the face;
• Colors K and L designate a slightly tinted diamond: the tint is easily visible from the face;
• Colors M to Z designate a tinted diamond, whose tint is very easily visible from the face.

The impact of diamond color on its value

The further you go down the measurement scale, from D to Z, the more tinted the diamond will be, and therefore the less expensive it will be. Indeed, it is rarer to find colorless diamonds in nature: the rarer the diamond, the more expensive it will be. Moreover, the price of a diamond follows the law of supply and demand; however, customers primarily seek colorless diamonds, which offer a more beautiful sparkle. Colorless diamonds are therefore more sought after, so they are more expensive.

Diamond fluorescence

When you buy a diamond, color is not the only factor to consider: you should also look at the diamond's fluorescence. Indeed, fluorescence can affect the perceived color of the diamond. Fluorescence is the diamond's ability to be fluorescent under ultraviolet (UV) light, i.e., to turn blue (or another color, but blue fluorescence remains the most common). Thus, if your diamond has strong fluorescence, its appearance will change in places with strong UV light (such as at the sea or in the mountains).

Diamond fluorescence is measured according to its intensity:

• None: the diamond will not change when exposed to sunlight
• Faint: the diamond will be very slightly blue
• Medium: the diamond will be slightly blue
• Strong or Very Strong: the diamond will be blue.

If you buy a diamond with a color D to I, it is not advisable to opt for a diamond with strong fluorescence, while for diamonds graded I to Z, fluorescence can make the diamond appear whiter. Thus, a D color diamond without fluorescence will have more value than a D color diamond with fluorescence.

Sell a colored diamond online

We examine all diamonds and the appraisal of your diamond is free.

The value of a diamond is determined based on four main criteria: Carat (weight), Cut (cut and shape), Clarity (purity) and Color (color). Color is a crucial factor, directly influencing the beauty and value of the diamond.

A diamond's color is measured by certified diamond grading professionals. They use a color scale from the Gemological Institute of America (GIA), ranging from D (colorless) to Z (tinted). This measurement must be carried out under specific conditions to ensure accuracy.

Colorless diamonds (D) are the rarest and therefore the most expensive. The more a diamond has a marked tint (towards yellow or brown), the less expensive it is. The rarity and customer demand for colorless diamonds increase their value.

Yes, Diamantaire Paris offers free and confidential jewelry appraisals. It is possible to come in person for an appraisal or to send a pre-appraisal by email at [email protected].

Yes, it is possible to come to 43 rue Beaubourg 75003 Paris, with or without an appointment, to sell or buy jewelry. Diamantaire Paris also offers a catalog of antique diamond jewelry for sale.

At Diamantaire Paris, we understand that a diamond's color is a crucial criterion that influences its beauty and value. Our guide on diamond color is designed to help you understand how color affects the overall quality of a diamond and how it is evaluated according to international standards. We know that buying or selling a diamond is an important decision, which is why we offer personalized advice to help you choose the perfect diamond taking into account all criteria, including color.

For those looking to sell their jewelry, we offer a free and expert assessment. Whether you wish to sell a diamond wedding ring or any other precious jewelry, our team of experts is here to provide you with an accurate estimate. We also understand the importance of designer pieces and offer specialized services for selling designer jewelry like Chopard.

Our commitment to excellence is also reflected in our customer service. For any questions or requests, feel free to contact us. We are here to assist you at every step, whether for buying, selling, or appraising your jewelry and diamonds.

Additionally, for those looking to invest in unique pieces, we offer an exquisite selection of vintage Van Cleef & Arpels parures. These timeless pieces are not only a financial investment but also a legacy of beauty and elegance.

At Diamantaire Paris, we are dedicated to providing an exceptional experience to our customers, combining expertise, passion, and unparalleled customer service. Whether you are looking to buy, sell, or simply appraise a diamond or piece of jewelry, we are your trusted partner in the fascinating world of jewelry.